Results 41 to 50 of about 13,580,399 (256)

Direct Measure of Giant Magnetocaloric Entropy Contributions in Ni-Mn-In [PDF]

open access: yes, 2016
Off-stoichiometric alloys based on Ni 2 MnIn have drawn attention due to the coupled first order magnetic and structural transformations, and the large magnetocaloric entropy associated with the transformations. Here we describe calorimetric and magnetic
Bruno, Nickolaus M.   +5 more
core   +2 more sources

Magnetocaloric effect in La0.75Sr0.25MnO3 manganite [PDF]

open access: yesJournal of Magnetism and Magnetic Materials, 2010
Abstract The polycrystalline manganite La0.75Sr0.25MnO3 prepared by an alternative carbonate precipitation route reveals the rhombohedral perovskite structure. Magnetization isotherms measured up to 2 T are used to determine Curie temperature of 332 K by means of Arrott plot. Maximum of magnetic entropy change is found at Curie temperature.
Pekala, M.   +4 more
openaire   +3 more sources

A Solid-to-Solid 2D Model of a Magnetocaloric Cooler with Thermal Diodes: A Sustainable Way for Refrigerating

open access: yesEnergies, 2023
Solid-state caloric cooling is a viable route toward a more sustainable way of refrigerating. The refrigerants are solid-state materials with a caloric effect detectable by measuring a temperature variation through an external-field intensity change. The
Luca Cirillo   +2 more
doaj   +1 more source

Study of magnetocaloric effect in half-metallic ferromagnet Co3Sn2S2

open access: yesResults in Physics, 2018
We have investigated the magnetocaloric effect of a shandite-type half-metal ferromagnet Co3Sn2S2. The magnetic entropy change -ΔSM(T,H) can be well scaled by the scaling relations, indicating that the magnetic ordering transition is of second order. The
Qi Shi   +7 more
doaj   +1 more source

Modulating the phase transition temperature of giant magnetocaloric thin films by ion irradiation

open access: yes, 2017
Magnetic refrigeration based on the magnetocaloric effect at room temperature is one of the most attractive alternative to the current gas compression/expansion method routinely employed.
Carrétéro, C   +13 more
core   +1 more source

Advanced magnetocaloric microwires: What does the future hold?

open access: yesVietnam Journal of Science, Technology and Engineering, 2023
Magnetic refrigeration (MR) based on the magnetocaloric effect (MCE) is a promising alternative to conventional vapor compression refrigeration techniques.
Hongxian Shen   +7 more
doaj  

Evaluating Magnetocaloric Effect in Magnetocaloric Materials: A Novel Approach Based on Indirect Measurements Using Artificial Neural Networks

open access: yesEnergies, 2019
The thermodynamic characterisation of magnetocaloric materials is an essential task when evaluating the performance of a cooling process based on the magnetocaloric effect and its application in a magnetic refrigeration cycle.
Angelo Maiorino   +5 more
doaj   +1 more source

Advanced materials for solid-state refrigeration

open access: yes, 2013
Recent progress on caloric effects are reviewed. The application of external stimuli such as magnetic field, hydrostatic pressure, uniaxial stress and electric field give rise respectively to magnetocaloric, barocaloric, elastocaloric and electrocaloric ...
Acet, Mehmet   +2 more
core   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

Self‐Cooling Molecular Spin Qudits

open access: yesAdvanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios   +12 more
wiley   +1 more source

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